Home / 1,315,431.66-1,815,301.16-711,819.66

Finding the Fourth Proportional to 1,315,431.66, 1,815,301.16 and 711,819.66

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Solution

The fourth proportional to 1,315,431.66, 1,815,301.16 and 711,819.66 is: 982,314.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,431.66 : 1,815,301.16 = 711,819.66 : x
  2. Step 2: Convert to fraction form
    1,315,431.66/1,815,301.16 = 711,819.66/x
  3. Step 3: Cross multiply
    1,315,431.66x = 1,815,301.16 × 711,819.66
  4. Step 4: Simplify right side
    1,315,431.66x = 1,292,167,060,426.41
  5. Step 5: Solve for x
    x = 1,292,167,060,426.41/1,315,431.66
  6. Step 6: Final answer
    x = 982,314.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.